\subsection{Oculus Rift}
The Oculus Rift is a virtual reality headset designed for immersive gaming \citep{OculusHP}. The commercial version of it is currently being developed, while a developer's kit has been released for developers (see Figure \ref{fig:CrystalCove}).

\begin{figure}[htbp]
\centering
\includegraphics[width=0.50\textwidth]{Pictures/Design/ocuSDK2}
\caption{Oculus Rift Development Kit 2 \citep{oculus_image}.}
\label{fig:CrystalCove}
\end{figure}

\begin{itemize}
\item \textbf{Input/output:} Oculus Rift is a head-mounted display that immerses the player in a virtual reality. It contains a screen that outputs visual feedback, as well as a number of sensors that measure inputs concerning the Oculus Rift's orientation. It also makes use of an external camera that tracks LED's on the Oculus Rift, adding more possibilities for movement in a virtual world \citep{ORcrystalCove}.
\item \textbf{Social:} When wearing the Oculus Rift, one is isolated from the outside world and thereby other players. Face-to-face communication is difficult. However, the image displayed inside the Oculus Rift can be shown on an external screen that other players can potentially follow.
\item \textbf{Market penetration:} The first developer's kit of the Oculus Rift can be acquired by anyone and has so far sold approximately 50,000 units \citep{oculus_salesNumbers}.
\end{itemize}

\underline{Assessing The Applicability}

The Oculus Rift has some issues in regards to local multiplayer games. When players are wearing the display, they are visually isolated from others, and therefore the social aspect of interactions can be absent. The cords restrict the movement of players and cause players to stand close together which is not preferable when players can't see their surroundings in the real world. 

%%% removed, since it might be too much for our VR censor
%Even though the Oculus Rift is easy to implement into various setups and on different hardware platforms, there is limited ways for the player to give inputs through the display. If other types of inputs are connected to give more possibilities of interactions, it would be less user-friendly to the player. This is due to the fact that the player cannot see external input devices, since the display is strapped on his head. Furthermore, there is a problem with players getting motion sickness from using the Oculus Rift and thereby having to stop the experience due to discomfort caused by the hardware \citep{vr_sickness}.